@PaperTRW posted:If you have an RS25 S24 PIC, that one accepts the chuff on the serial line and is compatible with the C&O ROM. The steam sound ROMs were changed slightly when paired with RS27 PICs, so anything newer than the RS25 S24 with an older ROM can occasionally produce some odd behavior.
I didn't realize I could swap out the PIC chip and keep the sounds, I'll give that a try and see if it solves that issue.
THANKS!
Well... that was a bust. Apparently, I don't have a single RS25 PIC chip, but I have a zillion of the RS27 chips. As stated, the RS27 chips do odd things. Close, but no cigar.